I bought some umami paste - I *think* it was Taste No. 5 - at Surdyk's deli in December, right before Christmas. (Haven't tried it yet...) But their stock changes a lot - give 'em a call to see if they still have it.

It appears that many of those ingredients are high in glutamic acid (aka a glutamate), a "natural" version of MSG: http://en.wikipedia.org/wiki/Glutamic... -- and the rest are probably there as taste enhancers.